<template>
  <div class="section">
    <!-- 背景颜色 -->
    <div class="color" />
    <div class="color" />
    <div class="color" />
    <div class="box">
      <!-- 背景圆 -->
      <div class="circle" style="--x: 0" />
      <div class="circle" style="--x: 1" />
      <div class="circle" style="--x: 2" />
      <div class="circle" style="--x: 3" />
      <div class="circle" style="--x: 4" />
      <!-- 登录框 -->
      <div v-if="isShow" class="container">
        <div class="form">
          <h2>登录</h2>
          <div>
            <div class="inputBox">
              <input v-model="loginForm.username" type="text" placeholder="用户名">
            </div>
            <div class="inputBox">
              <input v-model="loginForm.password" type="password" placeholder="密码">
            </div>
            <div class="inputBox">
              <el-button round @click="login">
                登录
              </el-button>
            </div>
            <!-- <p class="forget">
              忘记密码?点击这里
            </p> -->
            <p class="forget" @click="register">
              没有账户?注册
            </p>
          </div>
        </div>
      </div>
      <!-- 注册 -->
      <div v-if="!isShow" class="container">
        <div class="form">
          <h2>注册</h2>
          <div>
            <div class="inputBox">
              <input type="text" v-model="loginForm.username" placeholder="邮箱">
            </div>
            <div class="inputBox">
              <input type="password" v-model="loginForm.password" placeholder="密码">
            </div>
            <div class="inputBox">
              <input type="text" v-model="authCode" placeholder="验证码">
            </div>
            <div v-if="isCheck" class="check" @click="getAuthCode">获取验证码</div>
            <div v-else class="check-false">重新获取({{time}})</div>
            <div class="inputBox">
              <el-button round @click="registeredUser">
                注册
              </el-button>
            </div>
            <p class="forget" @click="toLogin">
              点击去登录
            </p>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  filters: {},
  components: {},
  data () {
    return {
      isShow: true,
      loginForm: {
        username: '',
        password: ''
      },
      authCode: '',
      isCheck: true, //显示获取验证码
      time: 60
    }
  },
  computed: {},
  mounted () { },
  methods: {
    down () {

    },
    login () {
      this.$store
        .dispatch('login', this.loginForm)
        .then((res) => {
          this.$message.success('登录成功！')
          this.$router.push('/')
        })
        .catch((data) => {
          this.$message.error(data.message)
        })
    },
    register () {
      this.isShow = false
    },
    toLogin () {
      this.isShow = true
    },
    /* 获取验证码 */
    getAuthCode () {
      /* 获取验证码 */
      this.isCheck = false
      let timer = setInterval(() => {
        if (this.time > 0) {
          this.time--
        }
        if (this.time === 0) {
          this.isCheck = true
          this.time = 60
          clearInterval(timer);
        }
      }, 1000)
      const params = {
        receiver: this.loginForm.username
      }
      this.$store.dispatch('getAuthCode', params)
    },
    /* 注册用户 */
    registeredUser () {
      const params = {
        userName: this.loginForm.username,
        password: this.loginForm.password,
        inputCode: this.authCode
      }
      this.$store.dispatch('registeredUser', params).then(res => {
        this.$message.success('注册成功！')
      }).catch(err => {
        this.$message.error(err)
      })
    },
  }
}
</script>
<style lang="scss" scoped>
.section {
  /* 相对定位 */
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  /* linear-gradient() 函数用于创建一个表示两种或多种颜色线性渐变的图片 */
  background: linear-gradient(to bottom, #f1f4f9, #dff1ff);
}

/* 背景颜色 */

.section .color {
  /* 绝对定位 */
  position: absolute;
  /* 使用filter(滤镜) 属性，给图像设置高斯模糊*/
  filter: blur(200px);
}

/* :nth-child(n) 选择器匹配父元素中的第 n 个子元素 */

.section .color:nth-child(1) {
  top: -350px;
  width: 600px;
  height: 600px;
  background: #ff359b;
}

.section .color:nth-child(2) {
  bottom: -150px;
  left: 100px;
  width: 500px;
  height: 500px;
  background: #fffd87;
}

.section .color:nth-child(3) {
  bottom: 50px;
  right: 100px;
  width: 500px;
  height: 500px;
  background: #00d2ff;
}

.box {
  position: relative;
}

/* 背景圆样式 */

.box .circle {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  /* backdrop-filter属性为一个元素后面区域添加模糊效果 */
  backdrop-filter: blur(5px);
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  /* 使用filter(滤镜) 属性，改变颜色。
    hue-rotate(deg)  给图像应用色相旋转
    calc() 函数用于动态计算长度值
    var() 函数调用自定义的CSS属性值x*/
  filter: hue-rotate(calc(var(--x) * 70deg));
  /* 调用动画animate，需要10s完成动画，
    linear表示动画从头到尾的速度是相同的，
    infinite指定动画应该循环播放无限次*/
  animation: animate 10s linear infinite;
  /* 动态计算动画延迟几秒播放 */
  animation-delay: calc(var(--x) * -1s);
}

/* 背景圆动画 */

@keyframes animate {
  0%,
  100% {
    transform: translateY(-50px);
  }
  50% {
    transform: translateY(50px);
  }
}

.box .circle:nth-child(1) {
  top: -50px;
  right: -60px;
  width: 100px;
  height: 100px;
}

.box .circle:nth-child(2) {
  top: 150px;
  left: -100px;
  width: 120px;
  height: 120px;
  z-index: 2;
}

.box .circle:nth-child(3) {
  bottom: 50px;
  right: -60px;
  width: 80px;
  height: 80px;
  z-index: 2;
}

.box .circle:nth-child(4) {
  bottom: -80px;
  left: 100px;
  width: 60px;
  height: 60px;
}

.box .circle:nth-child(5) {
  top: -80px;
  left: 140px;
  width: 60px;
  height: 60px;
}

/* 登录框样式 */

.container {
  position: relative;
  width: 400px;
  min-height: 400px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(5px);
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
}

.form {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 50px;
}

/* 登录标题样式 */

.form h2 {
  position: relative;
  color: #fff;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 5px;
  margin-bottom: 30px;
  // cursor: pointer;
}

/* 登录标题的下划线样式 */

.form h2::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 0px;
  height: 3px;
  background: #fff;
  transition: 0.5s;
}

.form h2:hover:before {
  width: 53px;
}

.form .inputBox {
  width: 100%;
  margin-top: 20px;
}

.form .check {
  margin-top: 12px;
  cursor: pointer;
}

.form .check-false {
  margin-top: 12px;
  color: #666;
  cursor: none;
}

/* 输入框样式 */

.form .inputBox input {
  width: 100%;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.2);
  outline: none;
  border: none;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 16px;
  letter-spacing: 1px;
  color: #00d2ff;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.form .inputBox input::placeholder {
  color: #fff;
}

/* 登录按钮样式 */

.form .inputBox input[type='submit'] {
  background: #fff;
  color: #666;
  max-width: 100px;
  margin-bottom: 20px;
  font-weight: 600;
  cursor: pointer;
}

.forget {
  cursor: pointer;
  margin-top: 6px;
  color: #fff;
  letter-spacing: 1px;
}

.forget a {
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}
</style>
